Plumbing and Heating
The boiler dies at 9pm on a Sunday, and the homeowner doesn'topen a search engine at all— they ask an AI assistant who to call
Burst pipes, dead boilers, and no-heat calls don't wait for business hours, and increasingly the first move isn't a Google search — it's typing the problem straight into ChatGPT, Gemini, or Perplexity and asking who to call right now. If the assistant doesn't already know your business is licensed, local, and answering emergencies, it recommends someone else.
By the time someone finishes typing "emergency plumber near me open now," the AI has already picked a shortlist — your job is making sure your business is on it before the water damage gets worse.
Plumbing and heating splits into two very different customer journeys, and AI assistants handle them differently. Emergencies — burst pipes, no heat in January, a leaking water heater — get answered instantly, with the AI naming one or two businesses it treats as trustworthy and available. There's no time for the homeowner to compare five websites; whoever the assistant names first usually gets the call. Planned work — a bathroom remodel, a heat pump swap, a boiler replacement ahead of winter — gets a slower, more comparative answer, where the AI weighs specialization, certifications, and reviews before naming names. Both paths run through the same signals: is this business licensed for the trade, does it answer emergencies, does it install the specific equipment (heat pumps, tankless units, combi boilers) being asked about, and do real customers say it showed up and fixed the problem. Licensing matters here in a very literal way — most jurisdictions require a plumbing or gas license to legally do the work, and an AI assistant that names an unlicensed outfit for a gas line repair is giving genuinely bad advice, which makes clear license and certification information one of the more concrete trust signals a plumbing business can put in front of these systems.
How your customers ask
How customers actually ask
Why it matters
What actually moves the needle
The emergency answer has no runner-up slot
When someone's basement is flooding, the AI gives one confident answer, not a comparison list. If your emergency availability, service area, and phone number aren't stated plainly and consistently across your site and listings, the assistant has no reason to risk naming you over a competitor who made it obvious.
Heat pump and subsidy questions are a different sale than a leaky tap
Homeowners asking about heat pump installs are usually also asking about government subsidy programs, and they want a plumber who's done the paperwork before, not just the pipework. Content that shows you handle both the install and the funding process signals a level of specialization a generic 'we fix everything' page doesn't.
Reviews get read for what happened, not just the star count
AI assistants pull meaning out of review text — did the plumber show up same-day, did they explain the quote, did they fix a botched job from someone else. A page of five-star ratings with no detail is weaker evidence than fewer reviews that describe an actual emergency call handled well.
Go deeper
Articles for Plumbing and Heating
Fundamentals
AI visibility for plumbing and heating businesses: the complete introduction
Practice
Heat pumps and BEG subsidies: how to win these customers through ChatGPT
Practice
Plumbing emergency service: how to get recommended by the AI at the decisive moment
Data & studies
Make your plumbing and heating service data machine-readable for AI
Strategy
Winning bathroom renovation enquiries: your GEO strategy for major projects
Questions plumbing and heating businesses ask us
We're licensed and insured — does that actually help if an AI doesn't know how to check it?
It helps most when it's stated plainly and consistently: license number and trade board name on your site, matched to the same details on your Google Business Profile and any trade directory you're listed in. AI assistants aren't verifying licenses against a government database in real time, but they do treat clear, consistent licensing claims across multiple sources as more trustworthy than a vague 'fully certified' with no specifics — and they're notably cautious about naming anyone for gas or heating work without some signal of legitimacy.
Should we publish separate pages written specifically for AI, like an llms.txt file?
No. Google's own guidance says no special markup or AI-specific files are needed for AI Overviews or AI Mode, and explicitly advises against writing content just 'for AI.' A large-scale check of sites that published llms.txt files found the overwhelming majority saw no measurable traffic benefit from it. The better use of that effort is making your existing emergency-hours, licensing, and service-area information accurate and easy to find — the same content a homeowner would want to read.
We get most of our work from repeat customers and referrals — is AI visibility even worth it for us?
It matters most for the moments referrals don't cover: someone new to the area, a homeowner whose regular plumber isn't answering at 11pm, or a heat pump inquiry that's outside what your regulars have needed before. You don't need to chase every query, but being findable and clearly described for emergency and specialty work fills the gaps referrals leave open.